Fixes for CI

* Fix warning that not including a cmake source or build dir will be a fatal error (it is now on newest CMakes)
    * Fixes appveyor
* Travis uses CMake 3.9 for more than a year now
* Travis dropped sudo: false in December

Author: henryiii

.appveyor.yml

@@ -61,6 +61,7 @@ build_script:
     -DPYBIND11_WERROR=ON
     -DDOWNLOAD_CATCH=ON
     -DCMAKE_SUPPRESS_REGENERATION=1
+    .
 - set MSBuildLogger="C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"
 - cmake --build . --config %CONFIG% --target pytest -- /m /v:m /logger:%MSBuildLogger%
 - cmake --build . --config %CONFIG% --target cpptest -- /m /v:m /logger:%MSBuildLogger%

.travis.yml

@@ -1,6 +1,5 @@
 language: cpp
 dist: trusty
-sudo: false
 matrix:
   include:
   # This config does a few things:
@@ -32,7 +31,7 @@ matrix:
       diff -rq $installed ./include/pybind11
     - |
       # Barebones build
-      cmake -DCMAKE_BUILD_TYPE=Debug -DPYBIND11_WERROR=ON -DDOWNLOAD_CATCH=ON
+      cmake -DCMAKE_BUILD_TYPE=Debug -DPYBIND11_WERROR=ON -DDOWNLOAD_CATCH=ON .
       make pytest -j 2
       make cpptest -j 2
   # The following are regular test configurations, including optional dependencies.
@@ -48,14 +47,11 @@ matrix:
       apt:
         sources: [deadsnakes]
         packages: [python3.6-dev python3.6-venv, cmake=2.\*, cmake-data=2.\*]
-  - sudo: true
-    services: docker
+  - services: docker
     env: PYTHON=2.7 CPP=14 GCC=6 CMAKE=1
-  - sudo: true
-    services: docker
+  - services: docker
     env: PYTHON=3.5 CPP=14 GCC=6 DEBUG=1
-  - sudo: true
-    services: docker
+  - services: docker
     env: PYTHON=3.6 CPP=17 GCC=7
   - os: linux
     env: PYTHON=3.6 CPP=17 CLANG=5.0
@@ -71,18 +67,17 @@ matrix:
     env: PYTHON=3.7 CPP=14 CLANG DEBUG=1
   # Test a PyPy 2.7 build
   - os: linux
-    env: PYPY=5.8 PYTHON=2.7 CPP=11 GCC=4.8
+    env: PYPY=7.1 PYTHON=2.7 CPP=11 GCC=4.8
     addons:
       apt:
         packages: [libblas-dev, liblapack-dev, gfortran]
   # Build in 32-bit mode and tests against the CMake-installed version
-  - sudo: true
-    services: docker
+  - services: docker
     env: ARCH=i386 PYTHON=3.5 CPP=14 GCC=6 INSTALL=1
     script:
       - |
         $SCRIPT_RUN_PREFIX sh -c "set -e
-        cmake ${CMAKE_EXTRA_ARGS} -DPYBIND11_INSTALL=1 -DPYBIND11_TEST=0
+        cmake ${CMAKE_EXTRA_ARGS} -DPYBIND11_INSTALL=1 -DPYBIND11_TEST=0 .
         make install
         cp -a tests /pybind11-tests
         mkdir /build-tests && cd /build-tests
@@ -130,9 +125,9 @@ before_install:
     SCRIPT_RUN_PREFIX="docker exec --tty $containerid"
     $SCRIPT_RUN_PREFIX sh -c 'for s in 0 15; do sleep $s; apt-get update && apt-get -qy dist-upgrade && break; done'
   else
-    if [ "$PYPY" = "5.8" ]; then
-      curl -fSL https://bitbucket.org/pypy/pypy/downloads/pypy2-v5.8.0-linux64.tar.bz2 | tar xj
-      PY_CMD=$(echo `pwd`/pypy2-v5.8.0-linux64/bin/pypy)
+    if [ "$PYPY" = "7.1" ]; then
+      curl -fSL https://bitbucket.org/pypy/pypy/downloads/pypy2.7-v7.1.0-linux64.tar.bz2 | tar xj
+      PY_CMD=$(echo `pwd`/pypy2.7-v7.1.0-linux64/bin/pypy)
       CMAKE_EXTRA_ARGS+=" -DPYTHON_EXECUTABLE:FILEPATH=$PY_CMD"
     else
       PY_CMD=python$PYTHON
@@ -147,12 +142,14 @@ before_install:
     if [ "$PY" = 3 ] || [ -n "$PYPY" ]; then
       $PY_CMD -m ensurepip --user
     fi
+    $PY_CMD --version
     $PY_CMD -m pip install --user --upgrade pip wheel
   fi
   set +e
 install:
 - |
   # Install dependencies
+  cmake --version
   set -e
   if [ -n "$DOCKER" ]; then
     if [ -n "$DEBUG" ]; then
@@ -173,10 +170,7 @@ install:
         git clone https://github.com/llvm-mirror/libcxx.git llvm-source/projects/libcxx -b release_50
         git clone https://github.com/llvm-mirror/libcxxabi.git llvm-source/projects/libcxxabi -b release_50
         mkdir llvm-build && cd llvm-build
-        # Building llvm requires a newer cmake than is provided by the trusty container:
-        CMAKE_VER=cmake-3.8.0-Linux-x86_64
-        curl https://cmake.org/files/v3.8/$CMAKE_VER.tar.gz | tar xz
-        ./$CMAKE_VER/bin/cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=~/.local ../llvm-source
+        cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=~/.local ../llvm-source
         make -j2 install-cxxabi install-cxx
         cp -a include/c++/v1/*cxxabi*.h ~/.local/include/c++/v1
         cd ..
@@ -205,6 +199,7 @@ script:
     -DPYBIND11_CPP_STANDARD=$CPP
     -DPYBIND11_WERROR=${WERROR:-ON}
     -DDOWNLOAD_CATCH=${DOWNLOAD_CATCH:-ON}
+    .
 - $SCRIPT_RUN_PREFIX make pytest -j 2
 - $SCRIPT_RUN_PREFIX make cpptest -j 2
 - if [ -n "$CMAKE" ]; then $SCRIPT_RUN_PREFIX make test_cmake_build; fi